

.c-fff{
    color: #fff;
}
.c-ccc{
    color: #ccc;
}
.c-000{
    color: #000;
}
.c-333{
    color: #333;
}
.c-666{
    color: #666;
}
.c-999{
    color: #999;
}

.bg-fff{
    background-color: #fff;
}
.bg-000{
    background-color: #000;
}

/* 渐变 */
.bg-linear{
    background-image: linear-gradient(
        transparent,
        rgba(0,0,0,0.6)
    );
}



